diff --git a/module/upgrade/model.php b/module/upgrade/model.php
index 15029f57b7..bc6e6061d6 100644
--- a/module/upgrade/model.php
+++ b/module/upgrade/model.php
@@ -698,6 +698,7 @@ class upgradeModel extends model
             $this->appendExec('15_2');
         case '15_3':
             $this->saveLogs('Execute 15_3');
+            $this->execSQL($this->getUpgradeFile('15.3'));
             $this->adjustBugRequired();
             $this->processTesttaskDate();
             $this->processDocTempContent();
@@ -894,7 +895,7 @@ class upgradeModel extends model
             case '15_0_2': $confirmContent .= file_get_contents($this->getUpgradeFile('15.0.2'));
             case '15_0_3': $confirmContent .= file_get_contents($this->getUpgradeFile('15.0.3'));
             case '15_2': $confirmContent .= file_get_contents($this->getUpgradeFile('15.2'));
-            case '15_3':
+            case '15_3': $confirmContent .= file_get_contents($this->getUpgradeFile('15.3'));
         }
         return str_replace('zt_', $this->config->db->prefix, $confirmContent);
     }